From Press Release:
Spawned from the war for existence itself between the Ravagers and the Earth Defense Force (EDF) featured in Earth Defense Force 4.1 THE SHADOW OF NEW DESPAIR comes a brand new 3D, top-down shoot ’em up spinoff! Players will step into the shoes of a soldier in Pale Team, an elite branch of the EDF’s Wing Diver division, and once again fight in the world featured in 4.1.
This game features 60 different weapons to collect and master throughout the game’s 6 missions and 5 difficulty levels (Easy, Normal, Hard, Hardest,and Inferno)! There’s even a leaderboard for high-scores! The story from behind the scenes of EDF 4.1 unravels here.